Year: 2016
Topic: The p-Block Elements
Time :
1.
Which one of the following statements is correct when SO
2
is passed through acidified K
2
Cr
2
O
7
solution ?
(1). The solution is decolourized
(2). SO
2
is reduced
(3). Green Cr
2
(SO
4
)
3
is formed
(4). The solution turns blue